Merge branch 'CHEF-1868'

Author: danielsdeleo

chef/lib/chef/knife/bootstrap/centos5-gems.erb

@@ -1,5 +1,5 @@
 bash -c '
-rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-3.noarch.rpm
+rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-4.noarch.rpm
 rpm -Uvh http://download.elff.bravenet.com/5/i386/elff-release-5-3.noarch.rpm
 
 yum install -q -y ruby ruby-devel gcc gcc-c++ automake autoconf rubygems make